pub unsafe extern "C" fn secp256k1_xonly_pubkey_tweak_add_check(
cx: *const Context,
tweaked_pubkey32: *const c_uchar,
tweaked_pubkey_parity: c_int,
internal_pubkey: *const XOnlyPublicKey,
tweak32: *const c_uchar,
) -> c_int
Available on non-
secp256k1_fuzz
only.